document.write( "Question 1135842: The sum of three terms of an A.P. is 21 and the product of the first and third exceeds the second term by 6, find the terms. \n" ); document.write( "
Algebra.Com's Answer #753525 by Boreal(15235)\"\" \"About 
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a1+a2+a3=21
\n" ); document.write( "note, a2 is n more than a1 and a3 is n more than a2 so the sum is 3a2=21 and a2=7\r
\n" ); document.write( "\n" ); document.write( "a1*a3=a2+6
\n" ); document.write( "so a1*a3=13\r
\n" ); document.write( "\n" ); document.write( "a2-a1=a3-a2\r
\n" ); document.write( "\n" ); document.write( "a1=1
\n" ); document.write( "a2=7
\n" ); document.write( "a3=13\r
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